Cartridge



` iaagmmm Patented may 2, um.

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mamma.

(Application filed June 23, 189B.)

(En Eudei.)

lPJnreNr @einen @Ameloee SPECIFICATXON forming; part of Letters PatentNo. 624,146, dated Mey 2, 1899. Application filed June 231898. SerialNo. 684,250. (Np model.)

To 11N when f5' muy! (1m/eww.'

lie iz, lgnown ilmi l, iiRANKLiN K. Yerno, of Boston, in the county ofSnilolk, :rml in lire Stale of MnesneiinseiLs,l1nve invented eer-min ewand nselfnlimprovements in Unririilges; and l ilo hereby declare tlm-Lthe following is nV full, clear, nnfl ermee description thereof,reference being had lo ille :iceompnnying ilrawings, in whichd Figure lis e perspective View of n eer-bridge emboyinginy invention; il@viewtliereof, partly in eentrnl longitudinal Seciiion and pei-tij inelevation; Fig. 3, :i similnr View of another form of cartridgeembodying,T my iuventien; Fig. 4, zi likeV View of ille forward portionof another form of my cartridge; Fig. 5,-@ detail view, partly insection and pim-ily in side elevzi'tion, of n form of bulleiJ which eenbe used in my cartridge; :intl Fig. G, n Side eleva/Lien of another formof bullet.

Leters of like name und l-zin l referto lille parte in each of illeiigures.

The objeei'f of my invention is ille provision of :i cnririilgeconstructed for use more espeeially with automatic guns; and to thisenel.

said invention consists in ille cartridge hav ing the 'constructionsubstzrntinlly :is herein :Liter Specified.

vrllie cartridge forming the Subject-metter of this polentn'ns devisedfor use with my aulionmiie gg'un whieli forms the subject-mntter ol myapplication for potent, Serial No. (559,502, ile'elovemberi, 1397, find.While in describing my carin( ge herein l shall refer to the gun shownin Snirl applica-tien it is to be understood ilmii (lo notreslriei,myself ifo its use with such gun or, in JTief, io any pm- -ieulnrconstruction of gun.

ln the embodiments oi' my invention illustrated herein ille shell isshown os mnde in two perils nml A', Lhe former being` :i liolloweylincler with one end open and ille einer emi forming ille cartridgebese orlieml il, and the pari'- An hollow cylinder inciosing :md closelytiming the oiher end provided .at one cnil will! interior Sercu'hreziclle engage e):- cerior llueul on. -lie end of the part A nenr the onse orhenil fz. The other cuil of the outer puri, A" contracted in llinmeler,be-

ginnin;l` nl the open end ofthe 'n!ieipz1rl;A, mid hns seem-eil wiiiiin.it the bullet or pro- YWithin 1he base a is formed :in

annuler groove e' for engagement by an extractor.

i need centi-:illy within the cartridge is a longindinnlly-movable rollo'r plunger C,

whose rear en l pesse through n central openinc in @he bese 0r bend aand which hes nn annular enlargement their forme n head or pislon B,fitting :nul movable in an axial direeiion .riihin a, oylinclriezilpassage a2, formed in the inner shell part near the base or head (e. Theelim-ge of powder or other explosive E is placed between the piston andtho rear end of lio bullet, :incl it is fired by ineens of n 'primer-l?,ihn'n is exploded by the front end of the plunger C, which reaches 00 :ipoint'J in the front part o the charge.. As shown in Fig. 9, the primer,being in the forni of n e'ap, ispleced over the fronb end of theplunger, so that; by the forward movemenn of the letter it will bestruck against the renr end or bese of the bullet. Instead of beingrplaced upon the plunger end Such zifforin of primer een, as shown inFig. 5, be applied to the nur let by being,l placed upon en nnril '11,formed in the base tliereoil in Figs. 3 and 6 the primer shown in the'forni oi' n pellet, which in ille former nease is shown nttzicliecl nolille end of the plunger and in lire hitter oase to lie end of thebulle". As eliown'in Fig. Il, the primer consists of i percussion-diskresting against the bose of the bullet.

lVhen ille iring-pin 0f the gun strikes the rear exposed end of timekplunger C, the forwnril movement thus given te the lai' ter will enlisethe iii-iin,r 'of the primer and ignite the ehnrge of explosivo. The'pressure ef the gases generned bythe ignition of the charge rioting onthe piston D will Lhen force the plunger reni-Ward, :ind the lnLLerbeing in engagement with ifne firing-pin of the gun will carry sniil pinrearward sind produce ille operation of the breech meelumism, :is fullyser, forth in my Said application,Serial No. 659,502, to which referencemede for the description of the consti-velieri and operation o' my gen.

il; is to be undcrsoorl Limb the cartridge een be ol :my desired iype,anl 'the shell een be niznle in the usuel or nnycleeired wey but l preferthe inve-parteonesLrueiion shown, 'because it enables 'tire easyproviiaion o the piston'- pnssnge n? and the moet convenient priming ICO2 esame and loading of the cartridge. It is also desirableas it resultsin a shell that is good, strong, and durable and capable of being reloaded and used repeatedly without injury. When fired in a gun, thepressure of .the gases of explosion expands the inner part against theWalls of the outer part, so that there can be no leakage of gas rearwardand outward between the two.

Vhile I have shownand described my cartridge as arranged te be fired bya primer ignited by the forward end of the plunger within the cartridge,l do not limit myself to theuse of such an arrangement, but contemplate, when desired, employing other means rearward pressure of thegases of explosion' within the cartridge, substantially as and for thepurpose described.

2. A cartridge having a base with an opening therethrough, and anenlarged interior passage connected with such opening, and a movableplunger adapted to be engaged by the firing-pin of a/gun in which thecartridge is used, and having a portion fitting in 'and closing theenlarged passage, with its forward explosion within the cartridge, .sothat suchv pressure will move the plunger rearward or outward when thecartridge is tired, substan tially as and for the purpose described.

3. A cartridge having a base with an opening, with both ends unclosed,and an interior passage connecting with such opening, but made largerthan the same, and a plunger having a part movable in the opening in thebase, and having a head. movable in the' passage, substantially as andfor the purpose described.

4. In a cartridge, in combination with a shell having a base with anopening through it, and an enlarged passage at the inner end of theopening, an igniting-plunger having a .part to move in the openingandahead tting in the passage, a projectile held in the shell, and anigniter or primer between the end of the ignitingplungerand theprojectile, adapted to be exploded against the base 0E the projectile byforward movement of-the igniting: plunger, substantialb` as and for thepurpose described.

In testimony that I claim I the foregoing I have hereunto set my handthis 22d dayy of June, A. l). 1898.

FRANKTAN K. YOUNG. `Witnesses:

GRACE l. FULLER, WM. l). FORBES.

